Yamaha YZF-R125 Service Manual: Chassis
- General chassis
- Front wheel
- Removing the front wheel (disc)
- Disassembling the front wheel
- Checking the front wheel
- Assembling the front wheel
- Adjusting the front wheel static balance
- Installing the front wheel (disc)
- Rear wheel
- Removing the rear wheel (disc)
- Checking the rear wheel
- Checking and replacing the rear wheel sprocket
- Adjusting the rear wheel static balance
- Installing the rear wheel (disc)
- Front brake
- Introduction
- Checking the front brake disc
- Replacing the front brake pads
- Removing the front brake caliper
- Checking the front brake caliper
- Assembling the front brake caliper
- Installing the front brake caliper
- Removing the front brake master cylinder
- Checking the front brake master cylinder
- Installing the front brake master cylinder
- Rear brake
- Introduction
- Checking the rear brake disc
- Replacing the rear brake pads
- Removing the rear brake caliper
- Disassembling the rear brake caliper
- Checking the rear brake caliper
- Assembling the rear brake caliper
- Installing the rear brake caliper
- Removing the rear brake master cylinder
- Checking the rear brake master cylinder
- Assembling the rear brake master cylinder
- Installing the rear brake master cylinder
- Handlebars
- Front fork
- Removing the front fork legs
- Disassembling the front fork legs
- Checking the front fork legs
- Assembling the front fork legs
- Installing the front fork legs
- Steering head
- Rear shock absorber assembly
- Removing the rear shock absorber assembly
- Checking the rear shock absorber assembly
- Checking the connecting arms and relay arm
- Installing the relay arm
- Installing the rear shock absorber assembly
- Swingarm
- Chain drive
Adjusting the headlight beams
The following procedure applies to both of the
headlights.
1. Adjust:
Headlight beam (vertically)
a. Turn the adjusting screw "1" in direction "a" or
"b".
A. Left headlight
B. Right he ...
General chassis
Installing the air filter case
1. Install:
Air filter case joint clamp
NOTE:
Align the projection "a" on the air filter case with
the slot "b" in the air filter case joint cl ...
Other materials:
Checking the cylinder and piston
1. Check:
Piston wall
Cylinder wall
Vertical scratches Replace the
cylinder,
and replace the piston and piston rings as a
set.
2. Measure:
Piston-to-cylinder clearance
a. Measure cylinder bore "C" with the cylinder
bore gauge.
NOTE:
Measure cylinder bore "C" by takin ...
Replacing an auxiliary light bulb
This model is equipped with two auxiliary
lights. If an auxiliary light bulb burns
out, replace it as follows.
Remove the socket (together with
the bulb) by pulling it out.
Auxiliary light bulb
Remove the burnt out bulb by pulling
it out.
Insert a new bulb into t ...
Throttle position sensor
1. Check:
Throttle position sensor
a. Connect the digital circuit tester to the terminals
of the throttle body sensor assembly
coupler as shown.
Positive tester probe →
gray/red terminal "1"
Negative tester probe →
gray/black terminal "2"
b. Measure the throttle pos ...